LOWER TRANSITION ROCKS. 115 



Ettlnahalli band. Their course on the north side of the great Bhima- 



gandi gorge is but a short one, but to the south they can be followed 



for fully 8 miles 



At Ubbalagandi this bed and the next above it are cut by the 



cross gorge just spoken of and a fine gate is 

 Ubbalagandi gate. 



formed, the haematite beds standing up as 

 splendid red crags conspicuous for many miles to the east. Two 

 other fine haematite cliffs show inside the gate, the westernmost of 

 which represents the extension of the great inverted bed above referred 

 to, which forms the great brilliantly red cliff which for fully four miles 

 scarps the eastern side of the Donimale wedge without a visible break. 



South of the gate the beds continue southward for nearly a mile, 

 but then become indistinct in their courses, owing probably to an 

 obscure fault which appears to run across the eastern side of the 

 synclinal, in a south-westerly direction, half a mile or so southward 

 of the apex of the Donimale wedge. There is here an area about a 

 square mile in extent which needs further close study to clear up ob- 

 scurity of relations between the haematite quartzite beds of the 

 Donimale and those which are to be seen in the hills north and north- 

 east of Appianhalli. The obscurity of the section is increased by 

 the inversion of the strata, which here also have been overturned 

 westward. 



The eastern side of the Bardha Kolla valley is formed by the ex- 



„ „ Tr „ „ tension of the principal haematite bed of the Etti- 



Bardha Kolla valley. r r 



nahalli ridge. After passing under the Narihalla, 

 this bed forms the crest of a considerable ridge a mile in length, then 

 it dips down again into the bed of the Bardha Kolla stream, and 

 rises again into a subsidiary ridge forming a shoulder along the west 

 flank of the Walabhadra ridge. It is much broken along its crest, and 

 where it curves east, just below the summit of the Walabhadra hill it 

 forms a castellated pile of great beauty, especially as seen by morning 

 light. The floor of the valley is for several miles completely masked 

 by talus from the surrounding haematitic cliffs and by local soil, and the 

 intermediate rock invisible therefore, and it is doubtful whether it is 

 a band of schist or a contemporaneous trap. 



H 2 ( 115 ) 



